close

Вход

Забыли?

вход по аккаунту

?

service-manual-IBM-ThinkPad-A21e

код для вставкиСкачать
IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual
December 2000
This manual supports:
ThinkPad A21e (MT 2628/2632)
Note
Before using this information and the product it supports, be sure to read the general information under “Notices” on page 100
.
Second Edition (December 2000)
The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS” WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer or express or implied warranties in certain transactions; therefore, this statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes to the products or the programs described in this publication at any time.
It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country.
Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative.
© Copyright International Business Machines Corporation 2000. All rights reserved. Note to U.S. Government Users - Documentation related to restricted rights - Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.
© Copyright IBM Corp. 2000
Contents
I n t r o d u c t i o n...............................................................................1
Important service information.....................................................1
Strategy for replacing F R U s...............................................1
How to use error m e s s a g e s...............................................2
Diskette compatibility m a t r i x.....................................................2
Safety notices: multilingual translations..................................3
Safety information........................................................................12
General safety........................................................................12
Electrical s a f e t y..................................................................13
Safety inspection g u i d e.....................................................14
Handling electrostatic discharge-sensitive devices
15
Grounding requirements.....................................................16
Laser compliance statement.....................................................16
General d e s c r i p t i o n s............................................................19
Read this f i r s t...............................................................................19
What to do f i r s t:..................................................................19
Related service information.....................................................21
Service Web s i t e..................................................................21
Using Recovery C D............................................................21
Passwords..............................................................................22
Power management............................................................24
Checkout g u i d e........................................................................27
Testing the computer...........................................................27
Detecting system information with PC-Doctor. . . 29
Power system checkout.....................................................29
ThinkPad A 2 1 e........................................................................33
Product overview........................................................................35
Specifications........................................................................35
Status i n d i c a t o rs..................................................................36
FRU T est s..............................................................................38
Fn key combinations............................................................40
Symptom-to-FRU i n d e x............................................................41
Numeric error c o d e s............................................................41
Error m e s s a g e s..................................................................44
Beep s y m p t o m s..................................................................45
No beep s y m p t o m s............................................................45
LCD-related s y m p t o m s.....................................................46
Intermittent problems............................................................46
Undetermined problems.....................................................47
FRU replacement n o t i c e s.....................................................47
Screw notices........................................................................47
Retaining serial numbers.....................................................48
Removing and replacing a FRU...............................................50
1010 Battery pack..................................................................51
1020 D I M M........................................................................52
1030 Mini PCI a d a p t e r.....................................................53
1040 Backup battery............................................................55
1050 Hard-disk d ri v e............................................................56
iii
1060 Ultrabay 2000 d e v i c e...............................................58
1070 K e y b o a r d..................................................................60
1080 Keyboard CRU i n s u l a t o r..........................................63
1090 Hinge cover..................................................................64
1100 Keyboard bezel and speaker..................................65
1110 Speaker c a b l e............................................................67
1120 Sub card........................................................................68
1130 PC Card slot a s s e m b l y.........................................70
1140 Fan a s s e m b l y............................................................71
1150 Diskette d r i v e............................................................73
1160 Upper shield..................................................................74
1170 System b o a r d............................................................75
2010 LCD assembly...........................................................77
2020 Front b e z e l..................................................................79
2030 Inverter c a r d............................................................81
2040 LCD p a n e l..................................................................83
L o c a t i o n s.....................................................................................87
Front v i e w..............................................................................87
Rear v i e w..............................................................................88
Bottom v i e w........................................................................89
Parts l i s t.....................................................................................90
LCD F R U..............................................................................93
K e y b o a r d..............................................................................95
Miscellaneous p a r t s............................................................96
Optional FRUs........................................................................98
Common parts list..................................................................99
N o t i c e s.....................................................................................100
Trademarks........................................................................100
i v ThinkPad A21e
Introduction
Important service information
Important
Diskette fixes are customer-installable. The diskette fixes are posted on the IBM support site (
http://www.pc.ibm.com/support/
).
Advise customers to contact the PC Company HelpCenter at 800-772-2227 if they need assistance in obtaining or installing any diskette fixes.
Customers in Canada should call IBM HelpPC at 800-565-3344 for assistance or download information.
Strategy for replacing FRUs
Before replacing parts
Make sure that all diskette fixes are installed before replacing any FRUs listed in this manual.
Use the following strategy to prevent unnecessary FRU
replacement and service expense:
* If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue.
* Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.
* If an adapter or device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.
1
Important service information
Attention
The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect.
Strategy for replacing a hard-disk drive
Always try to run a low-level format before replacing a hard-disk drive.
Attention
The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.
How to use error messages
Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code may also cause false error codes. If no error code is displayed, see if the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing.
Diskette compatibility matrix
The compatibility of each of the drives with the diskettes for it is as follows:
Diskette
drive
Diskette
capacity
Compatibility
3.5-inch
1.0 MB
Read and write
2.0 MB
Read and write
4.0 MB
Not compatible
2 ThinkPad A21e
Safety notices
Safety notices: multilingual translations
In this manual, safety notices appear in English with a page number reference to the appropriate translation in this section.
The safety notices are provided in English, French, German, Italian, and Spanish, as follows:
Safety notice 1
Before the computer is powered-on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts.
Avant de remettre l'ordinateur sous tension apres remplacement d'une unite en clientele, verifiez que tous les ressorts, vis et autres pieces sont bien en place et bien fixees. Pour ce faire, secouez l'unite et assurez-vous qu'aucun bruit suspect ne se produit. Des pieces metalliques ou des copeaux de metal pourraient causer un court-circuit.
Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird, muli sichergestellt werden, dali keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehause vergessen wurden. Der Computer muli geschuttelt und auf Klappergerausche gepruft werden. Metallteile oder-splitter konnen Kurzschlusse erzeugen.
Prima di accendere l'elaboratore dopo che e stata effettuata la sostituzione di una FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse all'interno dell'elaboratore. Verificare ci UU scuotendo l'elaboratore e prestando attenzione ad eventuali rumori; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir una FRU, compruebe que todos los tornillos, muelles y demas piezas pequenas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Compruebelo agitando el sistema y escuchando los posibles ruidos que provocarlan.
Las piezas metalicas pueden causar cortocircuitos electricos.
Introduction 3
Safety notices
Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.
Certaines batteries de secours contiennent du nickel et du cadmium. Ne les demontez pas, ne les rechargez pas, ne les exposez ni au feu ni a l'eau. Ne les mettez pas en court- circuit. Pour les mettre au rebut, conformez-vous a la reglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de l'horloge temps reel, veillez a n'utiliser que les modeles cites dans la liste de pieces detachees adequate. Une batterie ou une pile inappropriee risque de prendre feu ou d'exploser.
Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet, kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nur durch die Verkaufsstelle oder den IBM Kundendienst ausgetauscht werden. Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Die Batterie kann schwere Verbrennungen oder Veratzungen verursachen. Bei der Entsorgung die ortlichen Bestimmungen fur Sondermull beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgefuhrt ist. Der Einsatz falscher Batterien kann zu Entzundung oder Explosion fuhren.
(continued)
Safety notice 2
A DANGER:
4 ThinkPad A21e
Safety notices
Alcune batterie di riserva contengono una piccola quantita di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell'acqua ne cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dell'RTC (real time clock) o la batteria di supporto, utilizzare soltanto i tipi inseriti nell'appropriato Catalogo parti. L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa.
Algunas baterias de reserva contienen una pequena cantidad de nlquel y cadmio. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Desechelas tal como dispone la normativa local. Utilice solo baterias que se encuentren en la lista de piezas. La utilizacion de una bateria no apropiada puede provocar la ignicion o explosion de la misma.
Continuation of Safety notice 2
A DANGER:
Introduction 5
Safety notices
The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery.
La batterie contient du nickel. Ne la demontez pas, ne l'exposez ni au feu ni a l'eau. Ne la mettez pas en court- circuit. Pour la mettre au rebut, conformez-vous a la reglementation en vigueur. Lorsque vous remplacez la batterie, veillez a n'utiliser que les modeles cites dans la liste de pieces detachees adequate. En effet, une batterie inappropriee risque de prendre feu ou d'exploser.
Akkus enthalten geringe Mengen von Nickel. Sie durfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die ortlichen Bestimmungen fur Sondermull beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgefuhrt ist. Der Einsatz falscher Batterien kann zu Entzundung oder Explosion fuhren.
La batteria contiene piccole quantita di nichel. Non smontarla, gettarla nel fuoco o nell'acqua ne cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell'appropriato Catalogo parti. L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa.
Las baterias contienen pequenas cantidades de nlquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Desechelas tal como dispone la normativa local. Utilice solo baterias que se encuentren en la lista de piezas al sustituir la bateria. La utilizacion de una bateria no apropiada puede provocar la ignicion o explosion de la misma.
Safety notice 3
A DANGER:
6 ThinkPad A21e
Safety notices
The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.
La pile de sauvegarde contient du lithium. Elle presente des risques d'incendie, d'explosion ou de brulures graves. Ne la rechargez pas, ne retirez pas son connecteur polarise et ne la demontez pas. Ne l'exposez pas a une temperature superieure a 100°C, ne la faites pas bruler et n'en exposez pas le contenu a l'eau. Mettez la pile au rebut conformement a la reglementation en vigueur. Une pile inappropriee risque de prendre feu ou d'exploser.
Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzunden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs durfen nicht aufgeladen, zerlegt, uber 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die ortlichen Bestimmungen fur Sondermull beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgefuhrt ist. Der Einsatz falscher Batterien kann zu Entzundung oder Explosion fuhren.
La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa.
(continued)
Safety notice 4
A DANGER:
Introduction 7
Safety notices
La bateria de repuesto es una bateria de litio y puede provocar incendios, explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Desechela tal como dispone la normativa local.
Continuation of Safety notice 4
A DANGER:
8 ThinkPad A21e
Safety notices
Safety notice 5
If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing.
Si le panneau d'affichage a cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un medecin si des symptomes persistent apres le lavage.
Die Leuchtstoffrohre im LCD-Bildschirm enthalt Quecksilber. Bei der Entsorgung die ortlichen Bestimmungen fur Sondermull beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemali behandelt wird oder der Computer auf den Boden fallt. Wenn der Bildschirm beschadigt ist und die darin befindliche Flussigkeit in Kontakt mit Haut und Augen gerat, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespult und bei Beschwerden anschlieliend ein Arzt aufgesucht werden.
Nel caso che caso l'LCD si dovesse rompere ed il liquido in esso contenuto entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i sintomi dovessero permanere.
Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las areas afectadas con agua durante 15 minutos como mlnimo. Obtenga atencion medica si se presenta algun sintoma del fluido despues de lavarse.
Introduction 9
Safety notices
Safety notice 6
To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card.
Afin d'eviter tout risque de choc electrique, ne retirez pas le cache en plastique protegeant la partie inferieure de la carte d'alimentation.
Aus Sicherheitsgrunden die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen.
Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la parte inferiore della scheda invertitore.
Para evitar descargas, no quite la cubierta de plastico que rodea la parte baja de la tarjeta invertida.
Safety notice 7
Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials.
Bien que le voltage des batteries principales soit peu eleve, le court-circuit ou la mise a la masse d'une batterie peut produire suffisamment de courant pour bruler des materiaux combustibles ou causer des brulures corporelles graves.
Obwohl Hauptbatterien eine niedrige Spannung haben, konnen sie doch bei Kurzschluli oder Erdung genug Strom abgeben, um brennbare Materialien zu entzunden oder Verletzungen bei Personen hervorzurufen.
Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in corto circuito o a massa puo fornire corrente sufficiente da bruciare materiali combustibili o provocare ustioni ai tecnici di manutenzione.
Aunque las baterias principales tienen un voltaje bajo, una bateria cortocircuitada o con contacto a tierra puede producir la corriente suficiente como para quemar material combustible o provocar quemaduras en el personal.
10 ThinkPad A21e
Safety notices
Safety notice 8
Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables.
Avant de retirer une unite remplapable en clientele, mettez le systeme hors tension, debranchez tous les cordons d'alimentation des socles de prise de courant, retirez la batterie et deconnectez tous les cordons d'interface.
Die Stromzufuhr muli abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird.
Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione.
Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente electrica, quite la bateria y, a continuacion, desconecte cualquier cable de conexion entre dispositivos.
Introduction 11
Safety information
Safety information
The following section contains the safety information that you need to be familiar with before servicing an IBM mobile computer.
General safety
Follow these rules to ensure general safety:
• Observe good housekeeping in the area of the machines during and after maintenance.
• When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are too heavy for you.
• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
• Before you start the machine, ensure that other service representatives and the customer's personnel are not in a hazardous position.
• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.
• Keep your toolcase away from walk areas so that other people will not trip over it.
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately 8 centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
Attention: Metal objects are good electrical conductors.
• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.
• Reinstall all covers correctly before returning the machine to the customer.
12 ThinkPad A21e
Electrical safety
Observe the following rules when working on electrical equipment.
Safety information
Important
Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.
Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before:
- Performing a mechanical inspection
- Working near power supplies
- Removing or installing main units
• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in the off position.
• If you need to work on a machine that has exposed electrical circuits, observe the following precautions:
- Ensure that another person, familiar with the power-off controls, is near you.
Attention: Another person must be there to switch off the power, if necessary.
- Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back.
Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body.
- When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.
- Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.
Observe the special safety precautions when you work with very high voltages; these instructions are in the
Introduction 13
Safety information safety sections of maintenance information. Use extreme care when measuring high voltages.
• Regularly inspect and maintain your electrical hand tools for safe operational condition.
• Do not use worn or broken tools and testers.
• Never assume that power has been disconnected from a circuit. First, check that it has been powered off.
• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds.
• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.
• Do not service the following parts with the power on when they are removed from their normal operating places in a machine:
- Power supply units
- Pumps
- Blowers and fans
- Motor generators
and similar units. (This practice ensures correct grounding of the units.)
• If an electrical accident occurs:
- Use caution; do not become a victim yourself.
- Switch off power.
- Send another person to get medical aid.
Safety inspection guide
The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-IBM features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.
Consider these conditions and the safety hazards they present:
• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock)
• Explosive hazards, such as a damaged CRT face or a bulging capacitor
• Mechanical hazards, such as loose or missing hardware
14 ThinkPad A21e
Safety information
To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Power-off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition.
Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and frame ground.
b. The power cord should be the type specified in the parts list.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Use good judgment as to the safety of any non-IBM alterations.
6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
Handling electrostatic discharge-sensitive devices
Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
Notes
1. Use product-specific ESD procedures when they exceed the requirements noted here.
2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
• Keep the parts in protective packages until they are inserted into the product.
• Avoid contact with other people.
• Wear a grounded wrist strap against your skin to eliminate static on your body.
Introduction 15
• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.
• Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.
• Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement.
Safety information
Note
The use of a grounding system is desirable but not required to protect against ESD damage.
- Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.
- Use an ESD common ground or reference point when working on a double-insulated or battery-operated system. You can use coax or connector-outside shells on these systems.
- Use the round ground-prong of the AC plug on AC-operated computers.
Grounding requirements
Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.
Laser compliance statement
Some IBM Personal Computer models are equipped from the factory with a CD-ROM drive or DVD drive. CD-ROM drives or DVD drives are also sold separately as options. The CD-ROM drive or DVD drive is a laser product. The CD-ROM drive or DVD drive is certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products.
16 ThinkPad A21e
Laser compliance statement When a CD-ROM drive or DVD drive is installed, note the following:
A CAUTION:
Use o f controls or adjustments or performance o f procedures other than those specified herein might result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles aqui especificados pode resultar em perigosa exposigao a radiagao.
us. if*,
Pour eviter tout risque d’exposition au rayon laser, respectez les consignes de reglage et d ’ utilisation des commandes, ainsi que les procedures decrites.
Werden Steuer- und Einstellelemente anders als hier festgesetzt verwendet, kann gefahrliche Laserstrahlung auftreten.
Az itt elofrt eljarasoktol, beallitasoktol es vezerlesektol elterni a l&zersugdrzds vesz6lye miatt kockSzatos !
L’ utilizzo di controlli, regolazioni o l ’esecuzione di procedure diverse da quelle specificate possono provocare l ’esposizione a.
Mcn0/ib30BaHne 3/ieMeHTOB HacTpoiiKM m
B b i n o/m e H n e n p o u,e A y p m h u x, neM y K a3 aHO
3flecb, m o j k g t n p n a e c T M k 0 n a c H0 My paflnau,MOHHOMy oS^yneHmo.
PouZitie kontrdl, uprav alebo inych vykonani od inych vyrobcov, ako j e v tomto Specifikovang, mohlo by mat za n^sledok nebezpeCenstvo vystavenia sa vy2iarovaniu.
El uso de controles o ajustes o la ejecucion de procedimientos distintos de los aqui especificados puede provocar la exposicion a radiaciones peligrosas.
Opening the CD-ROM drive or DVD drive could result in exposure to hazardous laser radiation. There are no serviceable parts inside the CD-ROM drive or DVD drive. Do not open.
Introduction 17
Laser compliance statement Some CD-ROM drives or DVD drives contain an embedded Class 3A or Class 3B laser diode. Note the following:
A DANGER:
Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.
Radiagao por raio laser ao abrir. Nao olhe fixo no feixe de luz, nao olhe diretamente por meio de instrumentos oticos e evite exposigao direta com o feixe de luz.
m s m m
Rayonnement laser si carter ouvert. Evitez de fixer le faisceau, de le regarder directement avec des instruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geoffnetem Gerat. Nicht direkt oder uber optische Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden.
Kinyitaskor lezersugar ! Ne nezzen bele se szabad szemmel, se optikai eszkozokkel.
Kerulje a sugarnyalabbal valo erintkezest !
Aprendo l ’ unita vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici e evitare l ’esposizione diretta al fascio.
OTKpuBan, SeperMTecb Jia3epHoro M3.nyHeHnsi.
He CMOTpiiTe Ha Jiyn, He pa3rnnflt>iBaMTe ero C nOMOU^bK) OnTMHeCKMX MHCTpyMeHTOB, a TaiOKe n36eraMTe npsiMoro bosagmctbmr jia3epHoro jiyna.
Kecf je laserovd jednotka otvorend. Vyhnite sa priamemu pohfodu a nehradte priamo s optickymi n^strojmi do luSa a vyhnite sa priamemu vystaveniu rufiov.
Radiacion laser al abrir. No mire fijamente ni examine con instrumental optico el haz de luz. Evite la exposicion directa al haz.
18 ThinkPad A21e
General descriptions
This chapter includes descriptions for any ThinkPad model that has the PC-Doctor DOS diagnostics program. Some descriptions might not apply to your particular computer.
Read this first
Before you go to the checkout guide, be sure to read this section.
Important notes
• Only certified trained personnel should service the computer.
• Read the entire FRU removal and replacement page before replacing any FRU.
• Use new nylon-coated screws when you replace FRUs.
• Be extremely careful during such write operations as copying, saving, or formatting. Drives in the computer that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten.
• Replace FRUs only for the correct model.
When you replace a FRU, make sure the model of the machine and the FRU part number are correct by referring to the FRU parts list.
• A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.
• Be careful not to replace a nondefective FRU.
What to do first:
When you do return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:
_ 1.
Name and phone number of servicer
__ 2.
Date of service
__3.
Date on which the machine failed
__4.
Date of purchase
__ 5.
Failure symptoms, error codes appearing on the
display, and beep symptoms
19
Read this first
6. Procedure index and page number in which the
failing FRU was detected
7. Failing FRU name and part number
8. Machine type, model number, and serial number 9. Customer's name and address
Note for warranty: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. The following list provides some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use.
Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following:
The following are not covered under warranty:
• LCD panel cracked from the application of excessive force or from being dropped
• Scratched (cosmetic) parts
• Distortion, deformation or discoloration of the cosmetic parts
• Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC Card or the installation of an incompatible card
• Damage caused by foreign material in the diskette drive
• Diskette drive damage caused by pressure on the diskette drive cover or by the insertion of a diskette with multiple labels
• Damaged or bent diskette eject button
• Fuses blown by attachment of a nonsupported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
The following symptoms might indicate damage caused by nonwarranted activities:
• Missing parts might be a symptom of unauthorized service or modification.
• If the spindle of a hard disk drive becomes noisy, it may have been subjected to excessive force, or dropped.
20 ThinkPad A21e
Related service information
Related service information
This section provides information about the following:
•
“Service Web site”
•
“Using Recovery CD”
•
“Passwords” on page 22
•
“Power management” on page 24
Service Web site
When the latest maintenance diskette and the system program service diskette are available, a notice will be posted on http://www.pc.ibm.com/partner/infotips/
Using Recovery CD
To create Service Partition and install the preloaded system from Recovery CD, do the following;
To create Service Partition [SP]:
1. Erase all partitions on the hard-disk drive using FDISK or similar application.
2. Boot with Recovery CD (and boot diskette if required).
3. A menu will appear stating “Your computer originally included a Product Recovery program ... Reinstall the Product Recovery Program? (Y/N) [ ] ”.
Note: If the hard-disk drive contains any partitions, you will not receive this menu — go to step 1.
4. Enter “Y” and Service Partition will be created and loaded with D2D files.
Note: If you do not want to create Service Partition, press “N”, and then go to step 8.
5. Press “ENTER” at next window to continue.
• Service Partition will be created. System will automatically reboot during this precess.
• Recovery process will copy some files to the Service Partition, PKUNZIP others
• Follow prompts — you may be prompted to change CDs.
• System will reboot when complete, continue to step 6 to install preloaded system.
Install preloaded system from CD:
6. Boot with Recovery CD (and boot diskette if required)
7. If the hard-disk drive is blank, a menu will appear stating “Your computer originally included a Product Recovery program ... Reinstall the Product Recovery Program? (Y/N) [ ] ”.
• To install Service Partition, go to step 4.
• To preload hard-disk drive without installing Service Partition, press “N”.
General descriptions 21
Related service information
8. If a menu appears asking which operating system to install, highlight proper operating system and press “ENTER”.
9. A menu will appear stating “Full Recovery:”. Press “ENTER” to select.
10. Enter “Y” at the three windows which follow.
11. Follow prompts to complete Recovery.
Passwords
As many as three passwords may be needed for any ThinkPad computer: the power-on password (POP), the hard-disk password (HDP), and the supervisor password (SVP).
Exception: If only SVP is installed, the password prompt doesn't appear when the operating system is booted.
When any of these passwords is used, a password prompt appears on the screen whenever the computer is turned on. The computer does not start until the password is entered.
Power-on password:
A power-on password (POP) protects the system from being powered on by an unauthorized person. Without knowing the password, nobody can start the system.
Hard-disk password:
There are two hard-disk passwords (HDPs):
• User HDP—for the user
• Master HDP—for the system administrator, who can use it to get access to the hard disk even if the user has changed the user HDP
Note: There are two modes for the HDP: User only and Master + User. You can enter two HDPs when you select Master + User.
Attention
If the master HDP has been forgotten, there is no way to delete it. But you can still get access to the hard disk if you remember the user HDP. If both user HDP and master HDP have been forgotten, the password cannot be removed and the hard disk will not be accessible.
Supervisor password:
A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility so that
22 ThinkPad A21e
Related service information
without knowing the password, nobody can change the configuration of the computer.
Attention
If the SVP has been forgotten, there is no way to reset it.
How to remove the power-on password
To remove a POP that you have forgotten, do the following:
(A) If SVP is not installed:
1. Turn off the computer.
2. Remove the battery pack.
For how to remove the battery pack, see “ 1010 Battery
pack” on page 51
.
3. Remove the backup battery.
For how to remove the backup battery, see “1040
Backup battery” on page 55
.
4. Turn on the computer and wait until the POST ends.
After the POST ends, the password prompt does not appear. The POP has been removed.
5. Reinstall the backup battery and the battery pack.
(B) If SVP is installed:
1. Turn on the computer by pressing and holding F1.
2. Enter the SVP. The IBM BIOS Setup Utility menu appears.
3. Select Password, using the cursor keys to move down the menu.
4. Select Power-On Password.
5. Enter the SVP, at the Enter Current Password field.
6. When the Enter New Password field opens, leave it blank and press Enter twice.
7. Press Enter in the Changes have been saved window.
8. Press F10; then select Yes in the Setup confirmation window.
How to remove the hard-disk password
Attention
If User only mode is selected and the user HDP is forgotten, there is no way to reset it.
General descriptions 23
Related service information To remove the user HDP that you have forgotten, do the following:
1. Power on the computer by pressing and holding F1.
2. Enter the SVP. The IBM BIOS Setup Utility menu appears.
3. Select Password, using the cursor keys to move down the menu.
4. Select Hard-disk x password, where x is the letter of the hard-disk drive. A pop-up window opens.
5. Select either User HDP or Master HDP.
6. Enter the master HDP; then leave the New Password field blank and press Enter twice.
7. Press F10.
8. Select Yes in the Setup Configuration window.
The both user HDP and master HDP have been removed.
Power management
To reduce power consumption, the computer has three power management modes: screen blank (standby in Windows 95 and Windows NT) , standby (suspend in Windows 95 and Windows NT), and hibernation.
Note for standby mode and hibernation mode
Do not install or remove the UltraBay during standby mode or hibernation mode. The UltraBay of ThinkPad A21e supports only cold-swap. If you try to do warm-swap, the UltraBay LED starts to blink with beep sound.
Screen blank mode:
In screen blank mode, the following occurs:
• The LCD backlight turns off.
• The hard-disk drive motor stops.
• The speaker is muted.
To enter screen blank mode, press Fn + F3. To end screen blank mode and resume normal operation, press any key.
Standby mode:
When the computer enters standby mode, the following events occur in addition to what occurs in screen blank mode:
• The LCD is powered off.
• The hard-disk drive is powered off.
• The CPU stops.
To enter standby mode, do any of the following:
• Press Fn + F4.
• Close the LCD cover. (To prevent the computer from entering standby mode when the LCD is closed, click
24 ThinkPad A21e
Related service information Will not suspend even if LCD is closed in the Power Management Properties window. Then only the LCD turns off.)
In certain circumstances, the computer goes into standby
mode automatically:
• If a “suspend time” has been set on the timer, and the user does not do any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within the time set.
• If the battery indicator blinks orange, indicating that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the “Power Management Properties” window, the computer goes into hibernation mode.)
Note: Even if you don't set the low-battery alarm, the charge indicator lets you know that the battery is low, and then the computer enters the power-saving mode automatically. This default low-battery behavior is independent of the operating system; so if you have set the low-battery alarm, the computer may not do what you specified. It chooses either your setting or the default setting, whichever is appropriate.
Any one of the following events causes the computer to
resume operation from standby mode:
• The Fn key is pressed.
• The LCD cover is opened.
• The ring indicator (RI) is signaled by a serial device or a
PC Card device.
• The power switch is turned on.
• The resume timer is set. In Windows which has the
Scheduled Tasks, the Scheduled Tasks setting has priority over the setting in IBM BIOS Setup Utility.
Note: The computer does not accept any input
immediately after it enters suspend mode. Wait a few seconds before taking any action to reenter operation mode.
Hibernation mode:
Note for Windows NT
If you are using Windows NT in the default format, NTFS, you cannot create a hibernation file. If you want to use hibernation mode, you will need to reinstall Windows NT with FAT format.
In hibernation mode, the following occurs:
General descriptions 25
• The system status, RAM, VRAM, and setup data are stored on the hard disk.
• The system is powered off.
Related service information
Notes:
The computer cannot enter hibernation mode when it is powered with ac power and a communication PC Card is used.
Any one of the following events causes the computer to enter hibernation mode when the hibernation file is created:
• The Fn + F12 keys are pressed.
• The power switch is turned off and the mode is set to Power switch mode [Hibernation].
• The timer conditions are satisfied in suspend mode (for operating systems other than Windows 98).
• A critically low battery condition occurs.
When the power is turned on, the computer leaves hibernation mode and resumes operation. The hibernation file in the boot record on the hard-disk drive is read, and system status is restored from the hard-disk drive.
26 ThinkPad A21e
Checkout guide
Checkout guide
Use the following procedures as a guide in identifying and correcting problems with the ThinkPad computer.
Note: The diagnostic tests are intended to test only IBM products. The use of non-IBM products, prototype cards, or modified options can lead to false indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as possible.
2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation.
Testing the computer
The ThinkPad computer has a test program called PC-Doctor DOS (hereafter called PC-Doctor). You can detect errors by running the diagnostics test included in PC-Doctor. This section is an overview of the procedure. For details that depend on model-unique functions, refer to “ Product overview” on page 35
.
For some possible configurations of the computer, PC-Doctor might not run correctly. To avoid this problem, you need to initialize the computer setup by use of the IBM BIOS Setup Utility before you run PC-Doctor. On the IBM BIOS Setup Utility screen, press F9, Enter, F10, and then Enter.
Note: When you initialize the computer configuration,
some devices are disabled, such as the serial port.
If you test one of these devices, you will need to enable it by using PS2.EXE.
PC-Doctor cannot be used to test a device that is in the docking station, even if the computer supports the docking station. To test a USB device, connect it to the USB connector of the computer. To test the Ultrabay 2000 device, install it in the Ultrabay 2000 slot of the computer.
To run the test, do as follows:
Note: In the following procedure, you can select an item not only with the arrow keys, but also with the TrackPoint. Instead of pressing Enter, click the left button.
1. Insert the PC-Doctor disk into the diskette drive; then power on the computer.
If the computer cannot be powered on, go to “Power
system checkout” on page 29
, and check the power sources.
General descriptions 27
Checkout guide If an error code appears, go to “Symptom-to-FRU
index” on page 41
.
On the first screen, select the model and press Enter. Follow the instructions on the screen.
2. The main panel of PC-Doctor appears.
3. Select Diagnostics with the arrow keys, and press Enter.
A pull-down menu appears. (Its exact form depends on the model.)
The options on the test menu are as follows:
Diagnostics
Interactive Tests
• Run Normal Test
• Run Quick Test
• CPU/Coprocessor
• Systemboard
• Video Adapter
• Serial Ports
• Parallel Ports
• Fixed Disks
• Diskette Drives
• Other Devices
• Communication
• Memory Test - Full
• Memory Test - Quick
• Keyboard
• Video
• Internal Speaker
• Mouse
• Joystick Test
• Diskette
• System Load
• CD-ROM/DVD Test
• Stereo Speaker
Notes:
• In the Keyboard test in Interactive Tests, the Fn key
is scanned only once. Each key should be held down for at least 2 seconds; otherwise, it cannot be sensed.
• Video Adapter test supports only the LCD display on ThinkPad. Before running PC-Doctor DOS, detach the external Monitor.
Interactive Tests Hardware Info Utility Quit Fl=Help
i-.m.u.i.j
Run Quick Tost CPU/Coprocessor Systemboard Video Adaptor Serial Ports Paralles Ports Fixed Disks Diskette Drives Other Devices Comnmication Memory Test - Full Memory Test - Quick
PC-DOCTOR 2.0 Copyright 2000 PC-Doctor, Inc. All Rights Reserved.
Use the cursor keys and ESC to move in menus. Press ENTER to select.
4. Run the applicable function test.
5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it.
6. To exit the test, select Quit — Exit Diag.
28 ThinkPad A21e
To cancel the test, press Esc.
Note: After executing PC-Doctor, check the system time/date and reset them if needed.
Detecting system information with PC-Doctor
PC-Doctor can detect the following system information:
Hardware Info
• System Configuration
• Memory Contents
• Physical Disk Drives
• Logical Disk Drives
• VGA Information
• IDE Drive Info
• PCI Information
• PNPISA Info
• SMBIOS Info
• VESA LCD Info
Utility
• Run External Tests
• Surface Scan Hard Disk
• Benchmark System
• DOS Shell
• Tech Support Form
• Battery Rundown
• View Test Log
• Print Log
• Save Log
• Full Erase Hard Drive
• Quick Erase Hard Drive
Power system checkout
To verify a symptom, do the following:
1. Power off the computer.
2. Remove the battery pack.
3. Connect the ac adapter.
4. Check that power is supplied when you power on the computer.
5. Power off the computer.
6. Disconnect the ac adapter and install the charged battery pack.
7. Check that the battery pack supplies power when you power on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
•
“Checking the ac adapter” on page 30
•
“Checking operational charging” on page 30
•
“Checking the battery pack” on page 31
Checkout guide
General descriptions 29
•
“Checking the backup battery” on page 32
Checking the ac adapter
You are here because the computer fails only when the ac
adapter is used:
• If the power problem occurs only when the port replicator is used, replace the port replicator.
• If the power-on indicator does not turn on, check the power cord of the ac adapter for correct continuity and installation.
• If the computer does not charge during operation, go to "Checking operational charging."
To check the ac adapter, do the following:
1. Unplug the ac adapter cable from the computer.
2. Measure the output voltage at the plug of the ac adapter cable. See the following figure:
Checkout guide
Pin
Voltage (V dc)
1
+ 15.5 t o +17.0
2
Ground
( 1 6 - 10 V)
3. If the voltage is not correct, replace the ac adapter.
4. If the voltage is acceptable, do the following:
• Replace the system board.
• If the problem persists, go to “Product overview” on
page 35
.
5.
Note: Noise from the ac adapter does not always indicate a defect.
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon still does not turn on, replace the battery pack.
If the charge indicator still does not turn on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.
30 ThinkPad A21e
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.
To check the status of your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.
Checkout guide
Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
To check the battery pack, do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (-). See the following figure:
5(") 4
Terminal
Voltage (V dc)
1
+ 0 to + 12.6
5
Ground (-)
3. for Lithium ion battery;
• If the voltage is less than +11.0 V dc, the battery pack has been discharged.
Note: Recharging will take at least 3 hours, even if the indicator does not turn on.
If the voltage is still less than +11.0 V dc after recharging, replace the battery.
f or Nickel metal hydride battery;
• If the voltage is less than +8.0 V dc, the battery pack has been discharged.
Note: Recharging will take at least 3 hours, even if the indicator does not turn on.
If the voltage is still less than +8.0 V dc after recharging, replace the battery.
4. for Lithium ion battery;
• If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to 30 K ohm.
General descriptions 31
Checkout guide
for Nickel metal hydride battery;
• If the voltage is more than +8.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.
Checking the backup battery
Do the following:
1. Power off the computer, and unplug the ac adapter from it.
2. Turn the computer upside down.
3. Remove the battery pack (see
“1010 Battery pack” on
page 51
).
4. Remove the backup battery (see “Checking the battery
pack” on page 31
).
5. Measure the voltage of the backup battery. See the following figure.
• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the backup battery.
• If the backup battery discharges quickly after
replacement, replace the system board.
Wire Voltage (V dc)
Red +2.5 to +3.2
Black Ground
Black (-)
32 ThinkPad A21e
ThinkPad A21e
Product overview........................................................................35
Specifications........................................................................35
Status i n d i c a t o rs..................................................................36
FRU T est s..............................................................................38
Fn key combinations............................................................40
Symptom-to-FRU i n d e x............................................................41
Numeric error c o d e s............................................................41
Error m e s s a g e s..................................................................44
Beep s y m p t o m s..................................................................45
No beep s y m p t o m s............................................................45
LCD-related s y m p t o m s.....................................................46
Intermittent problems............................................................46
Undetermined problems.....................................................47
FRU replacement n o t i c e s.....................................................47
Screw notices........................................................................47
Retaining serial numbers.....................................................48
Restoring the serial number of the system unit 49
Retaining the U U I D.....................................................49
Removing and replacing a FRU...............................................50
1010 Battery pack..................................................................51
1020 D I M M........................................................................52
1030 Mini PCI a d a p t e r.....................................................53
1040 Backup battery............................................................55
1050 Hard-disk d ri v e............................................................56
1060 Ultrabay 2000 d e v i c e...............................................58
1070 K e y b o a r d..................................................................60
1080 Keyboard CRU i n s u l a t o r.........................................63
1090 Hinge cover..................................................................64
1100 Keyboard bezel and speaker..................................65
1110 Speaker c a b l e............................................................67
1120 Sub card........................................................................68
1130 PC Card slot a s s e m b l y.........................................70
1140 Fan a s s e m b l y............................................................71
1150 Diskette d r i v e............................................................73
1160 Upper shield..................................................................74
1170 System b o a r d............................................................75
2010 LCD assembly...........................................................77
2020 Front b e z e l..................................................................79
2030 Inverter c a r d............................................................81
12.1-in. p a n e l..................................................................81
14.1-in. and 15.0-in. panel s.........................................82
2040 LCD p a n e l..................................................................83
12.1-in. p a n e l..................................................................83
14.1-in. and 15.0-in. panel s.........................................85
L o c a t i o n s.....................................................................................87
Front v i e w..............................................................................87
Rear v i e w..............................................................................88
Bottom v i e w........................................................................89
Parts l i s t.....................................................................................90
LCD F R U..............................................................................93
33
12.1-in. SVGA T F T.....................................................93
14.1-in. XGA TFT............................................................93
15.0-in. XGA TFT............................................................93
15.0-in. XGA TFT ( L G )...............................................94
K e y b o a r d..............................................................................95
Miscellaneous p a r t s............................................................96
Optional FRUs........................................................................98
Common parts list..................................................................99
T o o l s..............................................................................99
Power cords ( s y s t e m )...............................................99
N o t i c e s.....................................................................................100
Trademarks........................................................................100
34 ThinkPad A21e
Product overview
Product overview
This section presents the following product-unique information:
•
“Specifications”
•
“Status indicators” on page 36
•
“FRU Tests” on page 38
•
“Fn key combinations” on page 40
Specifications
The following table lists the specifications of the ThinkPad A21e series:
Feature
Description
Processor
Intel® Celeron® processor 600 MHz, L2 128-KB cache
Bus architecture
PCI Bus
Memory (standard)
64 MB (SO DIMM x 1)
Memory (optional)
64 MB or 128 MB DIMM card (maximum of 256 MB)
CMOS RAM
114 bytes
Display
• 12.1-inch, 16M colors, SVGA (800x600 resolution) TFT color LCD
• 14.1-inch, 16M colors, XGA (1024x768 resolution) TFT color LCD
• 15.0-inch, 16M colors, XGA (1024x768 resolution) TFT color LCD
Diskette drive
1.44 MB (3-mode), 3.5-inch
Hard-disk drive
10.0 GB, 2.5-inch, IDE interface
I/O port
• External monitor
• Line-in
• Headphone
• Microphone
• Mouse or keyboard
• Parallel or diskette drive
• Port replicator connector
• Serial
• Universal serial bus (USB) connector
• RJ11
• RJ45
Internal modem
56.6 Kbps
Audio
• Internal speaker
• Software control volume
PC Card
One Type-III or Type-II or Type-I
AC adapter
72-watt type
Bay device
10-24 x CR-ROM drive
ThinkPad A21e 35
Status indicators
The system status indicators show the status of the computer, as follows:
Product overview
Indicator
Meaning
Q Battery
Green: The battery is fully charged. Blinking green:
The battery has enough power to operate, but is being charged.
Orange: The battery power is low. The battery is to being charged. Blinking orange:
The battery needs to be charged. when the indicator starts blinking orange, the computer beeps three times.
|2| Standby status
Green: The computer is in standby mode.
Blinking green:
The computer is entering standby mode or hibernation mode, or is resuming normal operation. This indicator does not blink in Windows 98, Windows 2000 and Windows Me.
(continued)
36 ThinkPad A21e
Product overview
Indicator
Meaning
Q Drive in use
Green: Data is being read from or
written to the hard-disk drive, the diskette drive, or the drive in the Ultrabay 2000. When this indicator is on, do not put the computer into standby mode or turn off the computer.
Note: Do not move the system while the Green drive in use light is on. Sudden physical shock could cause drive errors.
Q Num lock
Green: The numeric keypad on the
keyboard is enabled. To enable or disable the keypad, press and hold the Fn key while pressing the NumLk key.
Q Caps lock
Green: Caps Lock mode is enabled. To enable or disable Caps Lock mode, press Fn + Caps Lock key.
Q Scroll lock
Green: Scroll Lock mode is enabled.
Arrow keys can be used as screen-scroll function keys, but not to move the cursor. To enable or disable Scroll Lock mode, press Fn + ScrLk key. Not all application programs support this function.
Q Power on
Green: This indicator stays lighted
whenever the computer is on.
If the power-on indicator is on and the standby indicator is off, the system is ready to use. If both the power-on indicator and the standby indicator are on, you can use the computer after it returns from the standby mode and the standby indicator goes off.
ThinkPad A21e 37
FRU Tests
The following table shows the test for each FRU.
Product overview
FRU
Applicable test
System board
1. Diagnostics -- > CPU/Coprocessor
2. Diagnostics -- > Systemboard
Power
Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2)
LCD unit
1. Diagnostics -- > Video Adapter
2. Interactive Tests -- > Video
Modem
1. Make sure the modem is set up correctly.
2. Replace the modem jack and the modem card in turn, and run the following test in Diagnostics -- > Communication:
a. Lucent Modem (M2) Loopback
b. Lucent Modem (M2) Dialtone/DTM
c. Intel Modem Register
d. Intel Modem Loopback/DTMF
e. Intel SP Modem Register
f. Intel SP Modem Loopback/DTMF
g. 3Com MiniPCI Modem Test
h. 3Com MiniPCI Dialtone Test
Audio
1. Interactive Tests -- > Internal Speaker
2. Interactive Tests -- > Stereo Speaker
3. Diagnostics -- > Other Devices -- > Crystal SoundFusion™ Test
Speaker
1. Interactive Tests --> Internal Speaker
2. Interactive Tests -- > Stereo Speaker
PC Card slots
Note: The upper slot does not function and this test is available only for the bottom slot.Diagnostics -- > Systemboard -- >
PCMCIA, PCMCIA External Loop
Keyboard
1. Diagnostics -- > Systemboard -- > Keyboard
2. Interactive Tests -- > Keyboard
TrackPoint or pointing device
If the TrackPoint does not work, check the configuration in the ThinkPad Configuration program. If the TrackPoint is disabled, select Enable to enable it.
After you use the TrackPoint, the pointer may drift on the screen for a short time. This drift can occur when a slight, steady pressure is applied to the TrackPoint pointer. This symptom is not a hardware problem. If the pointer stops after a short time, no service action is necessary.
If enabling the TrackPoint does not correct the problem, continue with the following:
• Interactive Tests -- > Mouse
Hard-disk drive
Diagnostics -- > Fixed Disks
(continued)
38 ThinkPad A21e
Product overview
FRU
Applicable test
Diskette drive
1. Diagnostics -- > Diskette Drives
2. Interactive Tests -- > Diskette
CD-ROM or DVD drive
1. Diagnostics -- > Other Devices -- > CD-ROM/DVD
2. Interactive Tests -- > CD-ROM/DVD Test
Memory
1. If two DIMMs are installed, remove one of them and run Diagnostics --> Memory Test - Quick.
2. If the problem does not recur, return the DIMM to its place, remove the other one, and run the test again.
3. If the test does not detect the error, run Diagnostics -- > Memory Test - Full.
Fan
1. Turn on the computer and check the air turbulence at the louver near the power switch.
2. Run Diagnostics -- > Other Devices -- > IBM Fan.
ThinkPad A21e 39
Fn key combinations
The following table shows the function of each combination of Fn with a function key.
The Fn key works independently from the operating system.
Product overview
Key combination
Description
Fn + F1
Reserved.
Fn + F2
Reserved.
Fn + F3
Turn off the LCD display, leaving the screen blank. To turn the LCD display on again, press any key or the TrackPoint stick.
Fn + F4
Turn standby mode on. To return to normal operation, press the Fn key.
Fn + F5
Reserved.
Fn + F6
Reserved.
Fn + F7
Switch between the LCD and an external monitor.
Fn + F8
Turn screen expansion on or off. (There is no symbol on the key.)
Fn + F9
Reserved.
Fn + F10
Reserved.
Fn + F11
Reserved.
Fn + F12
Turn hibernation mode on.
Fn + PgUp
Turn the ThinkLight on or off.
Fn + Home
The LCD becomes brighter.
Fn + End
The LCD becomes less bright.
Fn + Insert
Audio volume becomes bigger.
Fn + Delete
Audio volume becomes smaller.
Fn + Backspace
Mute.
40 ThinkPad A21e
Symptom-to-FRU index
Symptom-to-FRU index
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed “ FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 46
.
Note
For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.
Numeric error codes
Symptom or error
FRU or action, in sequence
0175
Bad CRC1, stop POST task — The EEPROM checksum is not correct.
System board.
0187
EAIA data access error — The access to EEPROM has failed.
System board.
0188
Invalid RFID serialization information area or bad CRC2 — The EEPROM checksum is not correct.
System board.
0189
Invalid RFID configuration information area — The EEPROM checksum is not correct.
System board.
(continued)
ThinkPad A21e 41
Symptom-to-FRU index
Symptom or error
FRU or action, in sequence
0190
Critical low battery error.
1. Charge the battery pack.
2. Battery pack.
0200
Hard disk error — The hard disk is not working.
1. Reseat the hard-disk drive.
2. Load Setup Defaults in IBM BIOS Setup Utility.
3. Hard-disk drive.
4. System board.
021x
Stuck key — Keyboard error.
Run interactive tests of the keyboard and the auxiliary input device.
0220
Monitor type error — Monitor type does not match the one specified in CMOS.
Load Setup Defaults in IBM BIOS Setup Utility.
0230
Shadow RAM error — The shadow RAM failure at offset nnnn.
System board.
0231
System RAM failure at offset nnnn.
1. DIMM.
2. System board.
0232
Extended RAM error — Extended RAM failure at offset nnnn.
1. DIMM.
2. System board.
0250
System battery error — System battery is dead.
Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date.
0251
System CMOS checksum bad—Default configuration used.
Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date.
0252
Password checksum bad — The password is cleared.
Reset the password by running IBM BIOS Setup Utility.
0260
System timer error.
1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date.
2. System board.
0270
Real-time clock error.
1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date.
2. System board.
0271
Date and time error — Neither the date nor the time is set in the computer.
Run IBM BIOS Setup Utility to reset the time and date.
(continued)
42 ThinkPad A21e
Symptom-to-FRU index
Symptom or error
FRU or action, in sequence
0280
Previous boot incomplete — Default configuration used.
1. Load Setup Defaults in IBM BIOS Setup Utility.
2. DIMM.
3. System board.
02B2
Incorrect drive A type.
1. Diskette drive.
2. External FDD cable.
3. I/O card.
02F4
EISA CMOS not writable.
1. Load Setup Defaults in IBM BIOS Setup Utility.
2. Replace the backup battery.
3. System board.
02F5
DIMM test failure.
1. DIMM.
2. System board.
02F6
Software NMI failure.
1. DIMM.
2. System board.
02F7
Fail-safe timer NMI failure.
1. DIMM.
2. System board.
1801
Attached docking station is not supported.
Shut down the computer and remove it from the docking station
ThinkPad A21e 43
Error messages
Symptom-to-FRU index
Symptom or error
FRU or action, in sequence
Device address conflict.
1. Load Setup Defaults in IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Allocation error for device.
1. Load Setup Defaults in IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Failing bits: nnnn.
1. DIMM.
2. System board.
Invalid system configuration data.
1. DIMM.
2. System board.
I/O device IRQ conflict.
1. Load Setup Defaults in IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Operating system not found.
1. Check that the operating system has no failure and is installed correctly.
2. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified.
3. Reseat the hard-disk drive.
4. Reinstall the operating system.
5. Diskette drive.
6. Hard-disk drive.
7. System board.
Hibernation error.
1. Restore the system configuration to what it was before the computer entered hibernation mode.
2. If memory size has been changed, re-create the hibernation file.
Fan error.
Fan.
Unsupported memory configuration.
Maximum memory size is 256 MB. Shut down the computer and remove the extra memory.
44 ThinkPad A21e
Beep symptoms
Symptom-to-FRU index
Symptom or error
FRU or action, in sequence
One beep and a blank, unreadable, or flashing LCD.
1. Reseat the LCD connector.
2. LCD assembly.
3. External CRT.
4. System board.
One long and two short beeps, and a blank or unreadable LCD.
1. System board.
2. LCD assembly.
3. DIMM.
Two short beeps with error codes.
POST error. See
“ Numeric
error codes” on page 41
.
Two short beeps with blank screen.
1. System board.
2. DIMM.
Three short beeps, pause, three more short beeps, and one short beep.
1. DIMM.
2. System board
Only cursor appears.
Reinstall operating system.
No beep symptoms
Symptom or error
FRU or action, in sequence
No beep, power-on indicator on, LCD blank, and no POST.
1. Make sure that every connector is connected tightly and correctly.
2. DIMM.
3. System board.
No beep, power-on indicator on, and LCD blank during POST.
1. Reseat DIMM.
2. System board.
No beep during POST, but system runs correctly.
Speaker.
The power-on password prompt.
A power-on password or a supervisor password is set. Type the password and press Enter.
The hard-disk password prompt.
A hard-disk password is set. Type the password and press Enter.
The DOS full screen looks smaller.
Start the ThinkPad Configuration program and set the Screen expansion function.
ThinkPad A21e 45
LCD-related symptoms
Symptom-to-FRU index
Important
The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). A small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is:
• SVGA: 5 or more bright dots, 5 or more dark dots, or a total of 9 or more bright and dark dots.
• XGA: 8 or more bright dots, 8 or more dark dots, or a total of 9 or more bright and dark dots.
Note: Bright dots means pixel is always on (white or color.) Dark dots means pixel is always off (black color.)
Symptom or error
FRU or action, in sequence
No beep, power-on indicator on, and a blank LCD during POST.
System board.
• LCD backlight not working.
• LCD too dark.
• LCD brightness cannot be adjusted.
• LCD contrast cannot be adjusted.
1. Reseat the LCD connectors.
2. LCD assembly.
3. System board.
• LCD screen unreadable.
• Characters missing pixels.
• Screen abnormal.
• Wrong color displayed.
1. See important note for “ LCD-related symptoms”
.
2. Reseat all LCD connectors.
3. LCD assembly.
4. System board.
Horizontal or vertical lines displayed on LCD.
LCD assembly.
Intermittent problems
Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
46 ThinkPad A21e
Symptom-to-FRU index
3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.
Undetermined problems
You are here because the diagnostic tests did not identify which adapter or device failed, wrong devices are installed, a short circuit is suspected, or the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects).
Verify that all attached devices are supported by the computer.
Verify that the power supply being used at the time of the failure is operating correctly. (See “Power system
checkout” on page 29
.)
1. Power off the computer.
2. Visually check each FRU for damage. Replace any damaged FRU.
3. Remove or disconnect all of the following devices:
a.
Non-IBM devices
b.
Devices attached to the port replicator
c.
Printer, mouse, and other external devices
d.
Battery pack
e.
Hard-disk drive
f.
External diskette drive
g.
DIMM
h.
CD-ROM and diskette drive in the UltraslimBay
i.
PC Cards
4. Power on the computer.
5. Determine whether the problem has changed.
6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU):
a. System board
b. LCD assembly
FRU replacement notices
This section contains notices related to removing and replacing parts. Read this section carefully before replacing any FRU.
Screw notices
Loose screws can cause a reliability problem. The an IBM ThinkPad computer address this problem with special nylon-coated screws that have the following characteristics:
• They maintain tight connections.
• They do not easily come loose, even with shock or vibration.
ThinkPad A21e 47
FRU replacement notices
• They are harder to tighten.
• They should be used only once.
Do the following when you service this machine:
• Keep the screw kit (for reference the P/N, see “Miscellaneous parts” on page 96
) in your tool bag.
• Always use new screws.
• Use a torque screwdriver if you have one.
Tighten screws as follows:
• Plastic to plastic
Turn an additional 90 degrees after the screw head touches the surface of the plastic part:
90 degrees more
/
= =
////
/
3
/
/
/
/
(Cross-section)
• Logic card to plastic
Turn an additional 180 degrees after the screw head touches the surface of the logic card:
180 degrees more
N
\
\
/
7///
I
(Cross-section)
Torque driver
If you have a torque driver, refer to the “Torque” column for each step.
Make sure you use the correct screw. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. Never use a screw that you removed. Use a new one. Make sure the screws are tightened firmly.
Retaining serial numbers
This section includes the following descriptions:
•
“Restoring the serial number of the system unit” on
page 49
•
“Retaining the UUID” on page 49
48 ThinkPad A21e
Restoring the serial number of the system unit
When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the system and all major components. These numbers need to remain the same throughout the life of the computer.
If you replace the system board, you must restore the serial number of the system unit to its original value.
Before replacing the system board, save the original serial number by doing the following:
1. Install the ThinkPad hardware maintenance diskette version 1.61, and restart the computer.
2. From the main menu, select 1. Set System Identification.
3. Select 2. Read S/N data from EEPROM.
The serial number for each device is displayed. Write down the serial number of the system unit, designated as follows:
20: System unit serial number
After you have replaced the system board, restore the serial number by doing the following:
1. Install the ThinkPad hardware maintenance diskette version 1.61 and restart the computer.
2. From the main menu, select 1. Set System Identification.
3. Select 1. Add S/N data from EEPROM.
Follow the instructions on the screen.
Note: The serial number of the system unit is written on the label attached on the bottom of the computer.
Retaining the UUID
The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two computers in the world have the same number.
When you replace the system board, you must set the UUID on the new system board as follows:
1. Install the ThinkPad hardware maintenance diskette version 1.61, and restart the computer.
2. From the main menu, select 4. Assign UUID.
A new UUID is created and written. If a valid UUID already exists, it is not overwritten.
FRU replacement notices
ThinkPad A21e 49
Removing and replacing a FRU
Removing and replacing a FRU
This section presents information and drawings for use in removing and replacing a FRU. Be sure to observe the following general rules:
1. Do not try to service the computer unless you have been trained and certified. An untrained person runs the risk of damaging parts.
2. Before replacing any FRU, review “ FRU replacement
notices” on page 47
.
3. Begin by removing any FRUs that have to be removed before the failing FRU. Any such FRUs are listed at the top of the page. Remove them in the order in which they are listed.
4. Follow the correct sequence in the steps for removing the FRU, as indicated in the drawings by the numbers in square callouts.
5. When turning a screw to replace a FRU, turn it in the direction indicated by the arrow in the drawing.
6. When removing the FRU, move it in the direction indicated by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement. For information about connecting and arranging internal cables, see “Locations” on page 87
.
8. When replacing a FRU, use the correct screw as shown in the procedures.
CAUTION:
Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables.
CAUTION:
Do not disassemble the battery pack, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations.
Attention: Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.
Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touching these units.
You must use an electrostatic discharge (ESD) strap (P/N 6405959) to establish personal grounding.
50 ThinkPad A21e
Removing and replacing a FRU
1010 Battery pack
CAUTION:
If the rechargeable battery pack is incorrectly replaced, there is danger of an explosion. The battery pack contains a small amount of harmful substances. To avoid possible injury: (1) replace only with a battery of the type recommended by IBM, or an equivalent, (2) keep the battery pack away from fire, (3) do not expose it to water or rain, (4) do not attempt to disassemble it, (5) do not short-circuit it. Do not put the battery pack in trash that is disposed of in landfills. When disposing of the battery, comply with local ordinances or regulations.
ThinkPad A21e 51
1020 DIMM
Removing and replacing a FRU
• Battery pack (1010)
Note: Loosen the screw Q , but do not remove it.
When installing: With the notched end of the DIMM
toward the socket, insert the DIMM into the socket, then press it firmly. Pivot the DIMM until it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily.
52 ThinkPad A21e
Removing and replacing a FRU
1030 Mini PCI adapter
• Battery pack (1010)
Note: Loosen the screw Q , but do not remove it.
ThinkPad A21e 53
Removing and replacing a FRU
S. o'} \ J L S
J
Note: The illustration shows the combo card. Connector (A) is for the LAN feature and (B) is for the modem feature. This slot also supports a Mini PCI modem card or Mini PCI network card. Step 0 depends on the card type. Disconnect either (A), (B) or both.
When installing the card, do the following:
• With the notched end of the card toward the socket, insert the card into the socket, then press it firmly. Pivot the card until it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily.
• Make sure that the connector (A) is placed under the card when reinstalling the Mini PCI adapter.
54 ThinkPad A21e
Removing and replacing a FRU
1040 Backup battery
CAUTION:
There is a danger of an explosion if the backup battery is incorrectly replaced. The lithium battery (IBM P/N 02K6572 UL-recognized component [file no. MH12210]) contains lithium and can explode if it is not properly handled or disposed of. Replace only with a battery of the same type. To avoid possible injury or death, do not: (1) throw or immerse the battery into water, (2) allow it to heat to more than 100°C (212°F), or (3) attempt to repair or disassemble it. Dispose of it as required by local ordinances or regulations.
• Battery pack (1010)
• DIMM (1020)
• Mini PCI adapter (1030)
ThinkPad A21e 55
1050 Hard-disk drive
Removing and replacing a FRU
Attention
Do not drop or apply any shock to the hard-disk drive. The hard-disk drive is sensitive to physical shock. Incorrect handling can cause damage and permanent loss of data.
Before removing the drive, have the user make a backup copy of all the information on the drive if possible.
Never remove the drive while the system is operating or is in suspend mode.
• Battery pack (1010)
Note: The hard disk is attached to the cover.
Step
Screw (quantity)
□
Coin screw (1) or security screw (1)
Note: Use a 2.5-mm Allen wrench to remove the security screw.
56 ThinkPad A21e
Removing and replacing a FRU
When installing: Make sure that the HDD connector is firmly connected.
ThinkPad A21e 57
1060 Ultrabay 2000 device
Any of several devices can be inserted into the Ultrabay 2000. The procedure for installing and removing is the same for every device.
Removing and replacing a FRU
Note: When you release the switch in step Q the lever pops out. Pull the lever a little in step Q to release the device from the bay.
58 ThinkPad A21e
Removing and replacing a FRU
(continued)
ThinkPad A21e 59
1070 Keyboard
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
Step
Screw (quantity)
Torque
□
M2.5 ^ 15 mm, nylon-coated (3)
39.2 Ncm (4 kgfcm)
(continued)
60 ThinkPad A21e
Removing and replacing a FRU
□
ThinkPad A21e 61
Removing and replacing a FRU When installing: When installing the keyboard, do as follows:
1. Install the new keyboard, following the directions in the figure. Make sure that the keyboard edges, shown in the figure as (A), (B), and (C), are under the frame.
2. Push the Y key Q to connect the keyboard to the connector on the underside of the key; then push the frame of the keyboard Q to latch the latches.
3. After the fastening of three screws of bottom side, push the Y key again to connect the keyboard firmly to the connector on the underside of the key.
62 ThinkPad A21e
Removing and replacing a FRU
1080 Keyboard CRU insulator
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
ThinkPad A21e 63
1090 Hinge cover
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
64 ThinkPad A21e
Removing and replacing a FRU
1100 Keyboard bezel and speaker
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
Step
Screw (quantity)
Torque
□
M2.5 ^ 4.8 mm, nylon-coated (7)
39.2 Ncm (4 kgfcm)
(continued)
ThinkPad A21e 65
Removing and replacing a FRU
Step
Screw (quantity)
Torque
121
M2.5 ^ 15 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
Cable routing: When replacing the cable, see the preceding figure for its cable routing.
66 ThinkPad A21e
1110 Speaker cable
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
When installing: Make sure that you fasten the connector firmly.
ThinkPad A21e 67
1120 Sub card
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
Step
Screw (quantity)
Torque
□
Special, nylon-coated (2)
—
(continued)
68 ThinkPad A21e
Removing and replacing a FRU
Step
Screw (quantity)
Torque
121
M2.5 ^ 4.8 mm, nylon-coated (1)
39.2 Ncm (4 kgfcm)
ThinkPad A21e 69
Removing and replacing a FRU
1130 PC Card slot assembly
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• Sub card (1120)
Step
Screw (quantity)
Torque
□
M2.0 ^ 9.5 mm, nylon-coated (2)
24.5 Ncm (2.5 kgfcm)
70 ThinkPad A21e
1140 Fan assembly
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
Step
Screw (quantity)
Torque
□
M2.5 ^ 4.8 mm, nylon-coated (3)
39.2 Ncm (4 kgfcm)
ThinkPad A21e 71
Removing and replacing a FRU
When installing: When installing the fan assembly, apply the thermal grease (05K5751) on the Q -part of the fan as shown in the following figure.
72 ThinkPad A21e
1150 Diskette drive
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• Speaker cable (1110)
Note: Remove the diskette drive spacer Q gently; it will be reused when installing the new diskette drive.
Step
Screw (quantity)
Torque
121
M2.5 x 4.8 mm, nylon-coated (1)
39.2 Ncm (4 kgfcm)
131
M2.5 x 15 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
When installing: Do not press the 0 - p a r t of the diskette drive to avoid the damage.
ThinkPad A21e 73
1160 Upper shield
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• Speaker cable (1110)
• Sub card (1120)
• PC Card slot assembly (1130)
• Fan assembly (1140)
• Diskette drive (1150)
Step
Screw (quantity)
Torque
□
M2.5 x 15 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
121
M2.5 x 4.8 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
74 ThinkPad A21e
1170 System board
Removing and replacing a FRU
• Battery pack (1010)
• DIMM (1020)
• Mini PCI adapter (1030)
• Backup battery (1040)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• Speaker cable (1110)
• Sub card (1120)
• PC Card slot assembly (1130)
• Fan assembly (1140)
• Diskette drive (1150)
• Upper shield (1160)
Step
Screw (quantity)
Torque
□
M2.5 x 15 mm, nylon-coated (3)
39.2 Ncm (4 kgfcm)
(continued)
ThinkPad A21e 75
Removing and replacing a FRU
Step
Screw (quantity)
Torque
131
M2.5 x 4.8 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
76 ThinkPad A21e
2010 LCD assembly
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker(1100)
(continued)
ThinkPad A21e 77
Removing and replacing a FRU
Step
Screw (quantity)
Torque
121
Special, nylon-coated (2)
—
□
M2.5 x 4.8 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
78
ThinkPad A21e
2020 Front bezel
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• LCD assembly (2010)
Step
Screw (quantity)
Torque
□
M2.5 x 4.8 mm, nylon-coated (2)
39.2 Ncm (4 kgfcm)
ThinkPad A21e 79
Removing and replacing a FRU Note: Only the front bezel for the 15.0-in. XGA TFT (LG) has a identifying mark (O), as in the following figure. For reference FRU list, see “ 15.0-in. XGA
TFT (LG)” on page 94
80 ThinkPad A21e
2030 Inverter card
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• Keyboard bezel (1130)
• LCD assembly (2010)
• Front bezel (2020)
12.1-in. panel
Step
Screw (quantity)
Torque
□
M2.5 x 4.8 mm, nylon-coated (1)
39.2 Ncm (4 kgfcm)
(continued)
ThinkPad A21e 81
Removing and replacing a FRU
14.1-in. and 15.0-in. panels
Step
Screw (quantity)
Torque
□
M2.5 x 4.8 mm, nylon-coated (1)
39.2 Ncm (4 kgfcm)
82 ThinkPad A21e
2040 LCD panel
Removing and replacing a FRU
• Battery pack (1010)
• Hard-disk drive (1050)
• Ultrabay 2000 device (1060)
• Keyboard (1070)
• Keyboard CRU insulator (1080)
• Hinge cover (1090)
• Keyboard bezel and speaker (1100)
• LCD assembly (2010)
• Front bezel (2020)
• Inverter card (2030)
12.1-in. panel □
?
Step
MT
Screw (quantity)
Torque
□
2628-Cxx
M2.5 x 7.0 mm, nylon-coated (4)
39.2 Ncm (4 kgfcm)
(continued)
ThinkPad A21e 83
Removing and replacing a FRU
(continued)
84 ThinkPad A21e
Removing and replacing a FRU
14.1-in. and 15.0-in. panels
Step
MT
Screw (quantity)
Torque
□
2628-Jxx
M2.0 x 5.7 mm, nylon-coated (4)
24.5 Ncm (2.5 kgfcm)
(continued)
ThinkPad A21e 85
Removing and replacing a FRU Note: For 14.1-in. LCD, the LCD cable is taped onto the connector. Tear off the tape before disconnecting the LCD cable in step H .
86 ThinkPad A21e
Locations
Locations Front view
Q System status indicators
HI Battery and standby mode status indicators
|3| Built-in stereo speakers
B PC Card eject button
B PC Card slot
B Bay latch
B Eject button
B Ultrabay 2000 device
Note: The Ultrabay 2000 accepts storage
devices, such as a DVD drive, CD-ROM drive, CD-RW, ZIP250, 2nd HDD or 2nd battery.
B TrackPoint pointing stick
TO TrackPoint buttons
IQQI ThinkPad button
Volume and mute buttons EB Power switch
IQQI and IQ2I are Ez buttons for MT2632.
ThinkPad A21e 87
Locations
Rear view
IQI
Security keyhole
HI
Parallel connector
EI
Modem connector
□
Network connector
El
Serial connector
B
External-monitor connector
□
Universal serial bus (USB) connector
El
External-input-device connector
□
Power jack
88 ThinkPad A21e
Locations
Bottom view
IQI
Battery pack
HI
Battery pack latches
EI
Mini PCI card slot
□
Docking connector
El
DIMM slot
B
Stereo headphone jack
□
Stereo line-in jack
B
Diskette drive
B
Microphone jack
IQ0I
Hard-disk drive
IQQI
LCD latches
ThinkPad A21e 89
Parts list
90 ThinkPad A21e
The parts marked with asterisk are CRU (customer replacable unit).
Parts list
No.
FRU
P/N
1
LCD unit (see “LCD FRU” on page 93
)
2
Hinge cover
for MT2628-Jxx, -Ixx
04P3970
for MT2628-Cxx
04P3972
for MT2632 (i-series)
04P3725
3
Speaker assembly
for MT2628-Jxx
02K5644
for MT2628-Cxx and MT2632 (i-series)
02K5007
4
Keyboard bezel
for MT2628-Jxx
04P3727
for Korea
08K7091
for MT2628-Cxx
04P3726
for Korea
08K7090
for MT2632 (i-series)
04P3728
5
Sub card
08K3306
6
PC card slot
04P3398
7
Fan assembly
04P3482
a
Stiffener, CPU socket
8
Backup battery
02K6572
9
Mini PCI combo card (Intel)*
08K3125
Mini PCI combo card CR*
19K5888
Mini PCI combo card (3Com)*
22P6444
Mini PCI modem card (IBM CR)*
08K3338
Mini PCI modem card (Ambit)*
08K3252
Mini PCI Ethernet card (Intel)*
08K3348
for optional Mini PCI adapter, see
“Optional FRUs” on
page 98
10
Blank cap RJ45*
04P3975
11
Base cover
04P3712
for T-China
04P3716
for Korea
04P3720
for MT2632 (i-series)
04P3723
12
Ultrabay 2000 CD-ROM drive (LG)*
08K9579
Ultrabay 2000 CD-ROM drive drive (TEAC)*
27L3436
for optional Ultrabay 2000 device, see
“Optional FRUs” on
page 98
(continued)
ThinkPad A21e 91
Parts list
No.
FRU
P/N
b
Card modem connector (see “Miscellaneous parts” on
page 96
)
13
Cover, Mini PCI adapter slot*
08K5673
14
Battery pack (6 cell), SANYO*
02K6618
Battery pack (6 cell), Panasonic*
02K6614
Battery pack (7 cell) NiMH, Panasonic*
02K6720
Battery pack (9 cell), SANYO*
02K6619
Battery pack (9 cell), Panasonic*
02K6615
for optional battery pack, see
“Optional FRUs” on page 98
15
Cover, DIMM slot*
08K5674
16
Hard-disk drive (10.0 GB), SSD*
08K9508
Hard-disk drive (10.0 GB), Hitachi*
08K9531
Hard-disk drive (20.0 GB), SSD*
27L3427
Hard-disk drive (20.0 GB), Hitachi*
08K9533
for optional hard-disk drive, see “Optional FRUs” on
page 98
17
Cover, hard-disk drive*
for MT2628-Jxx
08K5676
for MT2628-Cxx and MT2632 (i-series)
08K5675
18
System board
08K3262
19
64-MB SDRAM SO DIMM*
20L0264
128-MB SDRAM SO DIMM*
20L0265
for optional DIMM, see
“Optional FRUs” on page 98
20
Upper shield
08K7158
21
Diskette drive (TEAC)
05K9157
Diskette drive (SONY)
08K9552
22
Spacer, diskette drive
04P3225
23
Speaker cable
27L0601
24
Keyboard* (see “Keyboard” on page 95
)
25
Pointing stick cap*
84G6536
-
Telephone cable*
05K2707
-
Video cable*
27L0531
-
AC adapter (72W), 3-pin (ASTEC)*
02K6666
AC adapter (72W), 3-pin (DELTA)*
02K6670
AC adapter (72W), 2-pin (ASTEC)*
02K6669
AC adapter (72W), 2-pin (SANKEN)*
02K6677
AC adapter (72W), 2-pin (DELTA)*
02K6673
for optional AC adapter, see “Optional FRUs” on page 98
92 ThinkPad A21e
Parts list
LCD FRU
12.1-in. SVGA TFT
FRU
P/N
LCD cover assembly
08K5655
for Korea
08K5659
LCD cable
27L0485
LCD panel (SANYO)
05K9577
Hinges
08K5664
Inverter card
08K3325
14.1-in. XGA TFT
FRU
P/N
LCD cover assembly
for MT2628-Ixx
08K5656
for MT2632 (i-series)
04P3724
LCD cable
for MT2628-Ixx
27L0486
for MT2632 (i-series)
27L0610
LCD panel (DBU)
05K9578
LCD panel (SAMSUNG)
05K9588
Hinges
08K5665
Inverter card
12P3051
15.0-in. XGA TFT
FRU
P/N
LCD cover assembly
08K5657
for Korea
08K6443
LCD cable
27L0487
LCD panel (SAMSUNG)
05K9580
Hinges
04P3488
Inverter card
08K3326
(continued)
ThinkPad A21e 93
15.0-in. XGA TFT (LG)
Parts list
FRU
P/N
LCD cover assembly
04P3048
for Korea
04P3049
LCD cable
27L0578
LCD panel (LG)
05K9647
Hinges
04P3488
Inverter card
08K3326
Misc kit (see
“Miscellaneous parts” on page 96
.)
04P3050
94 ThinkPad A21e
Parts list
Keyboard
Language
P/N
Arabic
02K5476
Belgian
02K5470
Canadian French
02K5456
Chinese, traditional
02K5459
Czech
02K5480
Danish
02K5467
Dutch
02K5464
European Spanish
02K5469
European French
02K5463
German
02K5462
Greek
02K5473
Hungarian
02K5479
Hebrew
02K5474
Italian
02K5468
Japanese
02K5458
Korean
02K5460
Latin American Spanish
02K5457
Norwegian
02K5466
Polish
02K5481
Portuguese
02K5472
Russian
02K5477
Slovakian
02K5478
Slovenian
02K5482
Swedish or Finnish
02K5465
Swiss
02K5471
Turkish
02K5475
U.K. English
02K5461
U.S. English
02K5455
Japanese (i-series)
02K5576
ThinkPad A21e 95
Miscellaneous parts
Parts list
FRU
P/N
Screw kit (including nylon-coated screws):
* M2 x 3.6 mm, flat head (3)
* M2 x 5.1 mm, flat head (5)
* M2 x 5.7 mm, flat head (5)
* M2 x 16 mm, bind head (3)
* M2.5 x 4.8 mm, flat head (42)
* M2.5 x 5.5 mm, flat head (2)
* M2.5 x 15 mm, flat head (15)
* M2.6 x 2.8 mm, bind head (7)
* M3 x 2.8 mm, small head (5)
* Coin screw (1)
* Security screw (1)
* Screw caps (14)
04P3973
Base miscellaneous parts:
* Lens, IR
* Lens, Ultrabay 2000 LES
* Lock, battery
* Spring, battery lock
* Lid, docking FR
* Lid, docking RR
* Spring, lid docking
* Rubber foot
* Sponge
* Sponge, shield lower
* Sponge, small
* Blank cap, battery
* Screw caps
* Cu tape
08K5647
System miscellaneous parts:
* Door, PC card slots
* Door, PC card 1 slot
* Spring, PC card slots
* Lens, LED hinge
* Blank cap, TV connector
* Eject knob, Ultrabay 2000
* Lock lever, Ultrabay 2000
* Spring, Ultrabay 2000
* Insulator, hard-disk drive
* Insulator, keyboard CRU
* Mini PCI guide
* Screw caps
04P3966
Miscellaneous parts, for system board:
* I/O bracket (right/left)
* Guide, keyboard connector
* Hex stud
* (b) Card modem connector
* Flat head screw (M2.5 x 4.8)
* Screw caps
08K5648
(continued)
96 ThinkPad A21e
Parts list
FRU
P/N
Miscellaneous parts, for diskette drive:
* Bezel
* Bracket
* Flexible cable
* Screw caps
04P3967
Miscellaneous parts, for LCD:
* Latch (right/left)
* Spring
* Spacer (for 15.0-in.)
* Blank cap, UltraPort
* Screw caps
04P3968
Miscellaneous kit for LCD 15.0-in. LG
* Latch (RH 15.0 LG)
* Latch (LH 15.0 LG)
* Spring (15.0 LG)
* Spacer (for 15.0-in.)
* Screw caps
04P3050
ThinkPad A21e 97
Optional FRUs
Parts list
64-MB SDRAM SO DIMM
20L0264
128-MB SDRAM SO DIMM
20L0265
AC adapter (72W), 3-pin (ASTEC)
02K6666
AC adapter (72W), 3-pin (DELTA)
02K6670
AC adapter (72W), 2-pin (ASTEC)
02K6669
AC adapter (72W), 2-pin (SANKEN)
02K6677
AC adapter (72W), 2-pin (DELTA)
02K6673
Ultrabay 2000 CD-ROM drive (LG)
08K9579
Ultrabay 2000 CD-ROM drive (TEAC)
27L3436
Ultrabay 2000 DVD-ROM drive (Hitachi)
27L4087
Ultrabay 2000 DVD-ROM drive (MKE)
27L3447
Ultrabay 2000 SuperDisk drive
05K9235
CD-RW drive (MKE)
00N7955
ZIP-250
00N8254
Hard-disk drive (10.0 GB), SSD
08K9508
Hard-disk drive (10.0 GB), Hitachi
08K9531
Hard-disk drive (20.0 GB), SSD
27L3427
Hard-disk drive (20.0 GB), Hitachi
08K9533
Hard-disk drive (32.0 GB), SSD
08K9509
Mini PCI combo card (Intel)
08K3125
Mini PCI combo card CR
19K5888
Mini PCI combo card (3Com)
22P6444
Mini PCI modem card (IBM CR)
08K3338
Mini PCI modem card (Ambit)
08K3252
Mini PCI Ethernet card (Intel)
08K3348
Multiple battery charger
02K6642
Ultrabay 2000 2nd HDD adapter
08K6067
Ultrabay 2000 battery
02K6645
ThinkPad Port Replicator
02K8669
98 ThinkPad A21e
Common parts list Tools
Parts list
Triconnector wrap plug
72X8546
PC test card
35G4703
Audio wrap cable
66G5180
USB parallel test cable
05K2580
Screwdriver kit
95F3598
Torque screwdriver
05K4695
5 mm socket wrench
05K4694
Screwdriver
27L8126
ThinkPad hardware maintenance diskette version 1.61
Note: Download the file from the Web site.
-
Power cords (system)
IBM power cords for a specific country are usually available only in that region:
For 2-pin power cords:
Region
P/N
Canada, United States of America
13H5264
Japan
13H5273
Argentina
36L8870
For 3-pin power cords:
Region
P/N
Australia, New Zealand
76H3514
Taiwan, Thailand
76H3516
Italy
76H3530
Denmark
76H3520
UK, Hong Kong
76H3524
European countries
76H3518
India, South Africa
76H3522
Israel
76H3532
Korea
76H3535
People's Republic of China (other than Hong Kong)
02K0539
Switzerland
76H3528
ThinkPad A21e 99
Notices
Notices
References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any of the intellectual property rights of IBM may be used instead of the IBM product, program, or service. The evaluation and verification of operation in conjunction with other products, except those expressly designated by IBM, are the responsibility of the user.
IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to the IBM Director of Licensing, IBM Corporation, 500 Columbus Avenue, Thornwood, NY 10594, U.S.A.
Trademarks
The following terms are trademarks of the IBM Corporation in the United States or other countries or both:
IBM
ThinkPad TrackPoint UltraBay Asset ID
PC-Doctor DOS is a trademark of PC-Doctor, Inc., in the United States and other countries.
Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States and/or other countries.
Pentium and Celeron are trademarks of Intel Corporation in the Unites States and/or other countries. (For a complete list of Intel trademarks, see http://www.intel.com/trademarx.htm
)
Other company, product, or service names may be the trademarks or service marks of others.
100 ThinkPad A21e
Notices
ThinkPad A21e 101
Part Number: 06P8883
Printed in U.S.A.
(1P) P/N: 06P8883
1P06P8883
Автор
dima202
dima202579   документов Отправить письмо
Документ
Категория
Инструкции
Просмотров
89
Размер файла
6 561 Кб
Теги
IBM
1/--страниц
Пожаловаться на содержимое документа